阅读说明：本技术 一种带有显色指示功能的一次性腰椎穿刺针 (A kind of disposable lumbar puncture needle with colour developing instruction function ) 是由 周静 郭浩 郭智 刘丽坤 马宗方 于 2019-08-08 设计创作，主要内容包括：本发明属于医疗器械技术领域,具体涉及一种带有显色指示功能的一次性腰椎穿刺针,解决了在腰椎穿刺的过程中无法迅速准确的确定所取液体为脑脊液的问题,包括穿刺针体和设置在穿刺针体内的穿刺针芯,穿刺针体包括空心圆柱状的穿刺杆,穿刺杆在靠近针体头的侧壁位置设置有针体侧孔；穿刺针芯包括穿刺芯和针芯尾端,穿刺芯为一端封闭的圆柱形管,穿刺芯封闭的一端侧壁上设置有针芯侧孔,穿刺芯的另一端连接有针芯尾端,针芯尾端外部为圆柱形结构且中部带有注射器连接口,针芯尾端内侧与穿刺芯接触的部分设置有PH试纸。本发明省去了操作过程中需要反复拔出针芯观察是否有脑脊液流出的繁琐,同时对判断脑脊液流出带来了极大的便利。(The invention belongs to the field of medical instrument technology, more particularly to a kind of disposable lumbar puncture needle with colour developing instruction function, it solves the problems, such as rapidly and accurately determine that taken liquid is cerebrospinal fluid during lumbar puncture, including puncturing needle body and being arranged in the intracorporal puncture needle core of puncture needle, the puncturing lever that needle body includes hollow cylindrical is punctured, puncturing lever is provided with needle body side opening in the sidewall locations close to needle body head；Puncture needle core includes puncturing core and needle core tail end, puncture core is cylindrical tube closed at one end, it punctures and is provided with needle core side opening on the closed one end side wall of core, the other end for puncturing core is connected with needle core tail end, needle core tail end outside is cylindrical structure and middle part has syringe connector, and the part contacted on the inside of needle core tail end with puncture core is provided with PH test paper.Present invention eliminates need to extract repeatedly in operating process needle core see whether cerebrospinal fluid outflow it is cumbersome, while to judge cerebrospinal fluid flow out bring great convenience.)

1. a kind of disposable lumbar puncture needle with colour developing instruction function, it is characterised in that: exist including puncturing needle body and setting The intracorporal puncture needle core of puncture needle, punctures the puncturing lever (1) that needle body includes hollow cylindrical, and puncturing lever (1) one end is cone The needle body head (3) of structure, puncturing lever (1) other end are the needle body tail end (2) of hollow cylindrical, and the internal diameter of needle body tail end (2) is 3~4 times of puncturing lever (1) diameter, puncturing lever (1) are provided with needle body side opening (4) in the sidewall locations close to needle body head (3)；It wears Pricker core includes puncturing core (5) and needle core tail end (8), and puncturing core (5) is cylindrical tube closed at one end, punctures core (5) closing One end side wall on be provided with needle core side opening (7), puncture core (5) the other end be connected with needle core tail end (8), needle core tail end (8) Outside is cylindrical structure and middle part has syringe connector (10), the portion contacted on the inside of needle core tail end (8) with puncture core (5) Set up separately and be equipped with PH test paper (9), PH test paper (9) is arranged in parallel along the axis for puncturing core (5).

2. a kind of disposable lumbar puncture needle with colour developing instruction function according to claim 1, it is characterised in that: needle The outer diameter of core urosome (8) is less than needle body urosome (2) 0.2~0.3mm of internal diameter, punctures core (5) outer diameter and is less than puncturing lever (1) internal diameter 0.2~0.3mm.

3. a kind of disposable lumbar puncture needle with colour developing instruction function according to claim 1, it is characterised in that: needle Side hole (4) is identical with needle core side opening (7) specification, is the long hole of length 3mm.

4. a kind of disposable lumbar puncture needle with colour developing instruction function according to claim 1, it is characterised in that: needle Body tail end (2) side wall is provided with contraposition Bluepoint (11), and needle core tail end (8) side wall is provided with contraposition red dot (12), works as puncture needle core When being arranged in puncture needle body, aligning Bluepoint (11) and contraposition red dot (12) can be completely coincident.

5. a kind of disposable lumbar puncture needle with colour developing instruction function according to claim 1, it is characterised in that: wear Pricker is medical stainless steel material, and puncture needle core is medical plastic, and puncture needle core is batch machining at the one of independent entirety Secondary property punctures consumables.

Technical field

The invention belongs to the field of medical instrument technology, and in particular to a kind of to indicate that the disposable lumbar vertebrae of function is worn with colour developing Pricker.

Background technique

The basic skills that lumbar puncture must be grasped as clinician, while being also as clinically a kind of common Detection methods and operation of diagnosis and treatment, can be used for diagnosing the various diseases associated with inflammation of central nervous system, vascular conditions, myelopathy Become, be suspected to have intracranial space-occupying lesion, to the nervous system disease of acatalepsia and spinal canal myelography etc.；Also for because of cerebrospinal pressure mistake High tapping (decompression) and injection of medicine treat central nervous system disease.At the same time, lumbar puncture passes through in anesthesia field Cavum subarachnoidale inject local anesthetic, the conduction function of blocking part spinal nerve and cause accordingly dominate region anesthesia make With being widely used in abdomen or lower extremity surgery.

However, but inevitably facing some problems, example while lumbar puncture clinically applies more and more extensive Such as particular patients ' puncture process difficulty to puncture the damage caused to patient repeatedly；There is apparent puncture to break through sense and has been found that brain Spinal fluid reflux is unsmooth；After puncture trickle property it is unknown can not determine be cerebrospinal fluid so that influence next step operation and Diagnosis etc..Disposable lumbar puncture needle with " colour developing instruction function " can solve the above problems to a certain extent.Hair Bright content

The present invention in order to solve the problems, such as during lumbar puncture rapidly and accurately to determine that taken liquid is cerebrospinal fluid, Provide a kind of disposable lumbar puncture needle with colour developing instruction function.

The present invention is achieved through the following technical solutions: a kind of disposable lumbar puncture with colour developing instruction function Needle, including needle body and setting are punctured in the intracorporal puncture needle core of puncture needle, the puncturing lever that needle body includes hollow cylindrical is punctured, is worn Thorn stick one end be conical structure needle body head, the puncturing lever other end be hollow cylindrical needle body tail end, needle body tail end it is interior Diameter is 3~4 times for puncturing shank diameter, and puncturing lever is provided with needle body side opening in the sidewall locations close to needle body head；Puncture needle core packet It includes and punctures core and needle core tail end, puncture core is cylindrical tube closed at one end, punctures and is provided with needle on the closed one end side wall of core Core side opening, the other end for puncturing core are connected with needle core tail end, and needle core tail end outside is cylindrical structure and middle part has syringe Connector, needle core tail end inside are provided with PH test paper with the part that core contacts is punctured, and PH test paper is set in parallel along the axis for puncturing core It sets.

The outer diameter of needle core urosome is less than needle body urosome 0.2~0.3mm of internal diameter, punctures core outer diameter and is less than puncturing lever internal diameter 0.2 ~0.3mm.

Needle body side opening is identical with needle core side opening specification, is the long hole of length 3mm.

Needle body tail end side wall is provided with contraposition Bluepoint, and needle core tail end side wall is provided with contraposition red dot, when puncture needle core is arranged When in puncture needle body, contraposition Bluepoint and contraposition red dot can be completely coincident.

Puncture needle body is medical stainless steel material, and puncture needle core is medical plastic, and puncture needle core is batch machining at only Found whole disposable puncture consumables.

Colour developing principle of the invention is: since cerebrospinal fluid is faintly acid, the close neutrality of pH range, specially 7 .31 ~7 .34, therefore the discoloration after PH test paper is met by observation cerebrospinal fluid, a Preliminary Identification can be done to efflux is punctured.

The present invention has the beneficial effect that compared with prior art

The present invention reduces during lumbar puncture bring damage and existing puncture needle existing on the market not to the full extent Together, needle core of the present invention uses the tubular, hollow structure with side opening, eliminates and needs constantly to extract needle core sight in puncture process The troublesome operation for whether having cerebrospinal fluid examined；Simultaneously because cerebrospinal fluid is limpid, transparent and needle body head end clear glass cylinder color difference Close, having some the elderlys, the patient of spinal canal stenosis and puncture position in addition not is that center and other reasons leads to csf flow It is less out, slow, cause observation difficult, increases the difficulty of puncture process.Present invention introduces PH test paper, if there is micro liquid Body flows out inside needle core, and encountering PH test paper will change colour immediately, and not only high sensitivity but also more easily observation reduce puncture Difficulty.As it can be seen that the present invention effectively increases the success rate of lumbar puncture while reducing penetration damage.The present invention passes through The PH test paper for introducing needle core and needle core tail end with side opening not only eliminates in operating process and needs to extract needle core sight repeatedly Whether have cerebrospinal fluid outflow cumbersome, while judging that the outflow of cerebrospinal fluid and clinical test are brought greatly to intuitive observation if examining It is convenient.

Detailed description of the invention

Fig. 1 is the structural schematic diagram that the present invention punctures needle body；

Fig. 2 is the structural schematic diagram of puncture needle core of the present invention；

Fig. 3 is the structural representation side view of Fig. 1；

Fig. 4 is the structural representation side view of Fig. 2.

Figure label: 1- puncturing lever, 2- needle body tail end, 3- needle body head, 4- needle body side opening, 5- puncture core, 6- needle core head, 7- Needle core side opening, 8- needle core tail end, 9-PH test paper, 10- syringe connector, 11- align Bluepoint, and 12- aligns red dot.

Specific embodiment

The present invention is specifically addressed in referring to Fig.1~Fig. 4, a kind of disposable lumbar puncture with colour developing instruction function Needle, including needle body and setting are punctured in the intracorporal puncture needle core of puncture needle, the puncturing lever 1 that needle body includes hollow cylindrical is punctured, 1 one end of puncturing lever is the needle body head 3 of conical structure, and 1 other end of puncturing lever is the needle body tail end 2 of hollow cylindrical, needle body tail The internal diameter at end 2 is 3~4 times of 1 diameter of puncturing lever, and puncturing lever 1 is provided with needle body side opening in the sidewall locations close to needle body head 3 4；Puncture needle core includes puncturing core 5 and needle core tail end 8, and puncture core 5 is cylindrical tube closed at one end, punctures core 5 closed one Needle core side opening 7 is provided on the wall of end side, the other end for puncturing core 5 is connected with needle core tail end 8, is cylindrical outside needle core tail end 8 Structure and middle part have syringe connector 10, and 8 inside of needle core tail end is provided with PH test paper 9, PH with the part that core 5 contacts is punctured Test paper 9 is arranged in parallel along the axis for puncturing core 5.

Wherein, the outer diameter of needle core urosome 8 is less than 2 0.2~0.3mm of internal diameter of needle body urosome, punctures 5 outer diameter of core and is less than puncturing lever 1 0.2~0.3mm of internal diameter.Needle body side opening 4 is identical with 7 specification of needle core side opening, is the long hole of length 3mm.2 side of needle body tail end Wall is provided with contraposition Bluepoint 11, and 8 side wall of needle core tail end is provided with contraposition red dot 12, when puncture needle core is arranged in puncture needle body When, contraposition Bluepoint 11 and contraposition red dot 12 can be completely coincident.The length of puncturing lever 1 is identical as the length of core 5 is punctured, and punctures When core 5 is inserted into puncturing lever 1, puncture closed one end of core 5 is needle core head 6, the company of needle core head 6 and needle body head 3, puncturing lever 1 It is concordant to connect position.

Puncture needle body is medical stainless steel material, and puncture needle core is medical plastic, and puncture needle core is batch machining into independence Whole disposable puncture consumables.It is spare that puncture needle core is processed into several progress, when use fits through pricker, i.e., It punctures needle body and is responsible for puncture, puncture needle core is responsible for extracting, be detected.When carrying out lumbar puncture to patient using the present invention, specifically Operating procedure are as follows:

Firstly, puncture needle core is inserted into puncturing lever body, guarantee the two exact matching.When insertion, the needle core side of puncture needle core Hole 7 is corresponding with 4 position of needle body side opening of needle body is punctured, and medical worker axially exerts oneself along puncturing lever 1, until contraposition 11 He of Bluepoint Contraposition red dot 12 can be completely coincident, at this point, checking whether needle body side opening 4 is completely coincident with needle core side opening 7, if the two is completely heavy It closes, then forms the complete structure of disposable lumbar puncture needle of the present invention with colour developing instruction function.

Further, medical worker carries out lumbar puncture using this practicability, and connects in 10 position of syringe connector Satisfactory syringe.There is cerebrospinal fluid to flow out and touch PH test paper 9 quickly after puncturing successfully to be allowed to change colour.Due to brain ridge Liquid is faintly acid, and pH range is close neutral, the specially .34 of 7 .31~7, therefore after meeting PH test paper by observation cerebrospinal fluid Discoloration can do a Preliminary Identification to efflux is punctured.

When primarily determining that puncturing gained liquid is cerebrospinal fluid, it is extracted using syringe；If liquid herein Obtain it is not target liquid by the discoloration of PH test paper, then further increase paracentesis depth, until completing target cerebrospinal fluid Until extraction.

After completing lumbar puncture and the extraction of target liquid, puncture needle core is taken out and is concentrated as hospital refuse and is destroyed, It is spare that the puncture needle body of stainless steel material carries out high-temperature sterilization.

The present invention has the puncture needle core of side opening and the PH test paper 9 of needle core tail end 8 by introducing, and not only eliminates operation It needs to extract needle core in the process repeatedly and sees whether the cumbersome of cerebrospinal fluid outflow, while csf flow is judged to intuitive observation Out and clinical test brings great convenience.